* [ci skip] refactor: create request context from network context
* [ci skip] refactor: subscribe to mojo cookiemanager for cookie changes
* [ci skip] refactor: manage the lifetime of custom URLRequestJobFactory
* refactor: use OOP mojo proxy resolver
* revert: add support for kIgnoreCertificateErrorsSPKIList
* build: provide service manifest overlays for content services
* chore: gn format
* fix: log-net-log switch not working as expected
* spec: verify proxy settings are respected from pac script with session.setProxy
* chore: use chrome constants where possible
* fix: initialize request context for global cert fetcher
* refactor: fix destruction of request context getters
* spec: use custom session for proxy tests
* fix: queue up additional stop callbacks while net log is being stopped
* fix: Add CHECK for cookie manager retrieval
* chore: add helper to retrieve logging state for net log module
* fix: ui::ResourceBundle::GetRawDataResourceForScale => GetRawDataResource
* style: comment unused parameters
* build: move //components/certificate_transparency deps from //brightray
* chore: update gritsettings_resource_ids patch
* chore: update api for chromium 68
* fix: net log instance is now a property of session
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